Added myself as a contributor to package.json

package.json

@@ -92,7 +92,8 @@
     "Panagiotis Tourlas <panagiot_tourlov@hotmail.com>",
     "Adam Midlik <midlik@gmail.com>",
     "Koya Sakuma <koya.sakuma.work@gmail.com>",
-    "Gianluca Tomasello <giagitom@gmail.com>"
+    "Gianluca Tomasello <giagitom@gmail.com>",
+    "Jason Pattle <jpattle@exscientia.co.uk>"
   ],
   "license": "MIT",
   "devDependencies": {